Relay Colorado offers many ways for you to communicate to anyone that has a phone. We have the services you need to never miss a word. Relay Colorado is a free public service that enables people with hearing or speech loss who use a teletypewriter (TTY) or other assistive device to communicate with standard telephone users. The conversation is relayed between the two parties by a specially trained Relay Colorado Communications Assistant. Relay Colorado is available 24 hours a day 365 days per year. For Espaol: 866-670-9134